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Diffstat (limited to 'src/cmd/compile/internal/types2/chan.go')
-rw-r--r-- | src/cmd/compile/internal/types2/chan.go | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/cmd/compile/internal/types2/chan.go b/src/cmd/compile/internal/types2/chan.go new file mode 100644 index 0000000000..77650dfb09 --- /dev/null +++ b/src/cmd/compile/internal/types2/chan.go @@ -0,0 +1,35 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package types2 + +// A Chan represents a channel type. +type Chan struct { + dir ChanDir + elem Type +} + +// A ChanDir value indicates a channel direction. +type ChanDir int + +// The direction of a channel is indicated by one of these constants. +const ( + SendRecv ChanDir = iota + SendOnly + RecvOnly +) + +// NewChan returns a new channel type for the given direction and element type. +func NewChan(dir ChanDir, elem Type) *Chan { + return &Chan{dir: dir, elem: elem} +} + +// Dir returns the direction of channel c. +func (c *Chan) Dir() ChanDir { return c.dir } + +// Elem returns the element type of channel c. +func (c *Chan) Elem() Type { return c.elem } + +func (c *Chan) Underlying() Type { return c } +func (c *Chan) String() string { return TypeString(c, nil) } |